EP0680907A1 - Device for attaching a gripper bar to a chain system in a machine for processing sheet elements - Google Patents
Device for attaching a gripper bar to a chain system in a machine for processing sheet elements Download PDFInfo
- Publication number
- EP0680907A1 EP0680907A1 EP95106522A EP95106522A EP0680907A1 EP 0680907 A1 EP0680907 A1 EP 0680907A1 EP 95106522 A EP95106522 A EP 95106522A EP 95106522 A EP95106522 A EP 95106522A EP 0680907 A1 EP0680907 A1 EP 0680907A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bar
- plate
- horizontal plate
- fastener
- internal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/16—Advancing webs by web-gripping means, e.g. grippers, clips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/08—Combinations of endless conveyors and grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
- B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/085—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers by combinations of endless conveyors and grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/30—Chains
- B65H2404/34—Gripper bars bridging at least two chains running synchronously and parallely
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/176—Cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/42—Die-cutting
Definitions
- the present invention relates to a device for attaching a gripper bar to a chain of chains within a machine for processing plate elements such as sheets of paper or cardboard, as well as to a clamp bar specially adapted for this device.
- Such a machine usually comprises first of all an introduction station in which a stack of sheets is installed, each sheet being successively removed from the top of the stack to be sent to a margin table.
- each sheet On this table, each sheet is placed in position against front and side cleats before being gripped at its front edge by a series of pliers mounted along a transverse bar, each end of which is attached to a train of side chains taking the bar, and therefore the sheet, to the following treatment stations.
- the treatment stations can be a cutting press, the latter being followed by a waste ejection station.
- These processing stations are followed by a receiving station in which each sheet released by the clamps is jogged before falling on top of an output stack.
- the device for attaching the clamp bars to the two trains of lateral chains must first of all be very solid in order to be able to transmit to the bars, and therefore to the sheets, the accelerating and decelerating forces appearing during a journey. intermittent at high speed through successive stations.
- This fastening device must also ensure rigidity in rotation about the axis passing through the chain of chains to limit as much as possible the bending of the bar due to the centrifugal forces appearing during the movement of the chains and in particular during their passage. around the driving and driven chain wheels placed respectively at the front and at the rear of the circuit described by the chains.
- transverse clamp support bars are usually produced in hollow sections to ensure bending rigidity, with a minimum of weight and therefore of inertia.
- a known attachment device consists of a single piece comprising a first part forming an integral part of the chain of which it replaces one of the links, and a second part extending the internal face of the first and coming to be inserted in the profile of the bar where it is fixed, for example by bolts.
- the length, in the direction of the bar, of this one-piece piece means that it provides a certain rigidity against centrifugal forces.
- this known fastening device comprising a part inserted inside the profile means that it is not possible to dismantle the clamp bar for repair or replacement without having to open the chains of chains, which is a particularly difficult and tedious operation.
- this attachment device has differences depending on whether it is intended for the chain on the left side (driver's side) or the chain on the side. straight (opposite side to the conductor) due to the presence of a notch and or other hole for the installation of a first clamp, which requires maintaining a double stock of spare parts which are otherwise symmetrical with one another.
- the object of the present invention is a device for attaching a bar to two trains of lateral chains capable of meeting the requirements of solidity and control of centrifugal forces, but which is of simple design, identical for each side, in order to limit implementation costs accordingly.
- Such a device must also be able to be associated with clamp bars produced and adapted from profile which can be dismantled without having to open the chain of chains.
- a fastening device comprising a first part forming an integral part of the chain of which it replaces one of the links and composed of an external plate and a vertical internal plate connected by an internal connection and capable of receiving between them an upstream axis and a downstream axis of chain links, each axis possibly being covered by an engagement cylinder, and of a second part extending the internal face of the first part, and composed of a horizontal plate provided for be installed on one of the faces of the end of the bar, as well as a counter plate intended to be inserted in the profile of the end of the bar and then connected to the upper plate by means passing through this face from the bar.
- the horizontal plate of the second part is connected to the upper edge of the internal vertical plate of the first part, if necessary by an oblique connection upwards, so that this first part is level with the bar of pliers.
- the fastener is symmetrical with respect to a vertical plane passing through the clamp bar, the internal and external plates of the first part being connected by a central connector. Because of this geometry, the same fastener can be used both on the driver side and on the side opposite to the driver.
- the upper face of the end of the clamp bar has a flat for the seat of the upper horizontal plate of the fastener.
- the outer end edge of the upper face of the bar has a central notch receiving a positioning lug in correspondence with the counterplate.
- This lug and notch facilitate the positioning of the counterplate inside the profile of the bar relative to the upper flat. The connection of the upper plate and its counter plate is then immediate.
- the counter plate is of substantially rectangular perforated shape
- the means for fixing the upper plate and its counter plate consists of two pairs of bolts passing through the upper plate and the bar before being inserted into tapped holes. formed in extra thicknesses acting as a nut and located at the four corners of the counterplate.
- the upper plate can then also be perforated in its center to reduce its weight accordingly.
- FIG. 1 illustrates a bar 5 supporting a plurality of parallel clamps 6. At each end of this bar is attached a fastener 10, each being capable of being inserted in a drive chain.
- this fastener 10 comprises, upstream and downstream, two housings for axes of chain links 2.
- this fastener 10 comprises two parts that are better visible in FIGS. 2 and 3.
- the first part comprises in its left part, as illustrated in FIG. 2, two vertical plates, an internal 30 and an external 32 held parallel and spaced apart by a central connector 31.
- These two vertical plates are provided for receiving axes of chain links, these axes being held in the external plate 32 by pliers 33 which can be tightened each by a bolt 37 (FIG. 6).
- the upper edge of the internal vertical plate 30 is extended by a substantially rectangular horizontal upper plate 34 and having, in its center, an oval cutout 35. At the four corners of this plate 34 are pierced vertical cylindrical orifices 38. In addition, the three quarters of the lateral edges of the plate 34 are completed with vertical flanges 36.
- the counter plate 12 is in the form of a horizontal rectangle 20 pierced with a central aperture 28 also substantially rectangular. Under the four corners of the rectangle 20 are provided extra thicknesses pierced with tapped vertical orifices acting as nuts 24. For better rigidity of this counter plate 12, the nuts 24 situated on the same lateral edge are connected by a rib 22 of rigidity. The upper edge of the side of the rectangle 20 oriented towards the vertical plate 30 is completed by a vertical central lug 26.
- a clamp bar 5 intended to be used with the fastener described above consists of a profile 40 substantially oval apart from the upper face 41 which is strictly planar. Edges upstream and downstream of this upper face 41 extend into two overhangs 42 enlarging the width of this bar for better fixing of the clamps.
- the downstream overhang has pairs of orifices for fixing the upper finger of a clamp while the corresponding orifices for fixing the lower finger of a clamp are produced within pre-positioning seats 48 located on the upstream overhang.
- this bar 5 has, on its upper face 41, a flat 49 constituting a seat for receiving the horizontal upper plate 34 of the fastener 10.
- a flat 49 constituting a seat for receiving the horizontal upper plate 34 of the fastener 10.
- the two overhangs 42 are reduced by about half or even by two thirds.
- These restrictions 43 have a chamfer 44 at their upper edge.
- Each of the angles of the extreme edge of the bar 5 is cut in a bevel 45 thus avoiding any harmful acute angle.
- a locating notch 46 is cut in the middle of the extreme edge.
- the clamp bar 5 is mounted on the fastener 10 in the following manner.
- the connection between the upper plate 34 and the vertical plate 30 being slightly oblique, the section 40 is found at the same level as the axes 2 of chain links.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Discharge By Other Means (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Clamps And Clips (AREA)
- Chain Conveyers (AREA)
- Advancing Webs (AREA)
- Discharge Of Articles From Conveyors (AREA)
- Catching Or Destruction (AREA)
- Jigs For Machine Tools (AREA)
- Vehicle Body Suspensions (AREA)
- Knitting Machines (AREA)
Abstract
Description
La présente invention est relative à un dispositif d'attache d'une barre de pinces à un train de chaînes au sein d'une machine de traitement d'éléments en plaque tels que des feuilles de papiers ou de cartons, ainsi qu'à une barre de pinces spécialement adaptée pour ce dispositif.The present invention relates to a device for attaching a gripper bar to a chain of chains within a machine for processing plate elements such as sheets of paper or cardboard, as well as to a clamp bar specially adapted for this device.
Une telle machine comprend usuellement d'abord une station d'introduction dans laquelle est installée une pile de feuilles, chaque feuille étant successivement enlevée du dessus de la pile pour être envoyée sur une table de marge. Sur cette table, chaque feuille est mise en position contre des taquets avant et latéraux avant d'être saisie en son bord frontal par une série de pinces montées le long d'une barre transversale, dont chaque extrémité est attachée à un train de chaînes latérales emmenant la barre, donc la feuille, dans les stations suivantes de traitement. Les stations de traitement peuvent être une presse de découpage, cette dernière étant suivie d'une station d'éjection des déchets. Ces stations de traitement sont suivies d'une station de réception dans laquelle chaque feuille relâchée par les pinces est taquée avant de tomber sur le dessus d'une pile de sortie.Such a machine usually comprises first of all an introduction station in which a stack of sheets is installed, each sheet being successively removed from the top of the stack to be sent to a margin table. On this table, each sheet is placed in position against front and side cleats before being gripped at its front edge by a series of pliers mounted along a transverse bar, each end of which is attached to a train of side chains taking the bar, and therefore the sheet, to the following treatment stations. The treatment stations can be a cutting press, the latter being followed by a waste ejection station. These processing stations are followed by a receiving station in which each sheet released by the clamps is jogged before falling on top of an output stack.
Le dispositif d'attache des barres de pinces aux deux trains de chaînes latéraux doit d'abord être très solide afin de pouvoir transmettre aux barres, donc aux feuilles, les forces d'accélérations et de décélérations apparaissant lors d'un trajet intermittent à haute cadence au travers des stations successives.The device for attaching the clamp bars to the two trains of lateral chains must first of all be very solid in order to be able to transmit to the bars, and therefore to the sheets, the accelerating and decelerating forces appearing during a journey. intermittent at high speed through successive stations.
Ce dispositif d'attache doit également assurer une rigidité en rotation autour de l'axe passant par le train de chaînes pour limiter autant que possible la flexion de la barre due aux forces centrifuges apparaissant lors du déplacement des chaînes et en particulier lors de leur passage autour des roues à chaînes menantes et menées placées respectivement à l'avant et à l'arrière du circuit décrit par les chaînes.This fastening device must also ensure rigidity in rotation about the axis passing through the chain of chains to limit as much as possible the bending of the bar due to the centrifugal forces appearing during the movement of the chains and in particular during their passage. around the driving and driven chain wheels placed respectively at the front and at the rear of the circuit described by the chains.
Par ailleurs, les barres transversales de support de pinces sont usuellement réalisées en des profilés creux pour assurer une rigidité en flexion, avec un minimum de poids donc d'inertie.Furthermore, the transverse clamp support bars are usually produced in hollow sections to ensure bending rigidity, with a minimum of weight and therefore of inertia.
Un dispositif d'attache connu est constitué d'une pièce monobloc comprenant une première partie faisant partie intégrante de la chaîne dont elle remplace l'un des maillons, et une seconde partie prolongeant la face interne de la première et venant s'insérer dans le profilé de la barre où elle fixée, par exemple par des boulons. La longueur, dans le sens de la barre, de cette pièce monobloc fait qu'elle assure une certaine rigidité contre les forces centrifuges.A known attachment device consists of a single piece comprising a first part forming an integral part of the chain of which it replaces one of the links, and a second part extending the internal face of the first and coming to be inserted in the profile of the bar where it is fixed, for example by bolts. The length, in the direction of the bar, of this one-piece piece means that it provides a certain rigidity against centrifugal forces.
Toutefois, la conception de ce dispositif d'attache connu comprenant une partie insérée à l'intérieur du profilé fait qu'ils n'est pas possible de démonter la barre de pinces pour réparation ou remplacement sans devoir ouvrir les trains de chaînes, ce qui est une opération particulièrement difficile et fastidieuse.However, the design of this known fastening device comprising a part inserted inside the profile means that it is not possible to dismantle the clamp bar for repair or replacement without having to open the chains of chains, which is a particularly difficult and tedious operation.
De plus, ce dispositif d'attache présente des différences selon qu'il est prévu pour la chaîne du côté gauche (côté conducteur) ou la chaîne du côté droit (côté opposé au conducteur) de par la présence d'encoche et ou autre orifice pour l'installation d'une première pince, ce qui oblige à maintenir un double stock de pièces de rechange par ailleurs symétriques entre elles.In addition, this attachment device has differences depending on whether it is intended for the chain on the left side (driver's side) or the chain on the side. straight (opposite side to the conductor) due to the presence of a notch and or other hole for the installation of a first clamp, which requires maintaining a double stock of spare parts which are otherwise symmetrical with one another.
Le but de la présente invention est un dispositif d'attache d'une barre à deux trains de chaînes latéraux apte à respecter les exigences de solidité et de maîtrise des forces centrifuges, mais qui soit de conception simple, identique pour chaque côté, pour en limiter d'autant les coûts de réalisation. Un tel dispositif doit de plus pouvoir être associé à des barres de pinces réalisées et adaptées à partir de profilé qui puissent être démontées sans devoir ouvrir le train de chaînes.The object of the present invention is a device for attaching a bar to two trains of lateral chains capable of meeting the requirements of solidity and control of centrifugal forces, but which is of simple design, identical for each side, in order to limit implementation costs accordingly. Such a device must also be able to be associated with clamp bars produced and adapted from profile which can be dismantled without having to open the chain of chains.
Ces buts sont réalisés grâce à un dispositif d'attache comprenant une première partie faisant partie intégrante de la chaîne dont elle remplace l'un des maillons et composée d'une plaque externe et une plaque interne verticales reliées par un raccord intérieur et aptes à recevoir entre elles un axe amont et un axe aval de maillons de chaîne, chaque axe étant éventuellement recouvert par un cylindre d'engrènement, et d'une seconde partie prolongeant la face interne de la première partie, et composée d'une plaque horizontale prévue pour être installée sur l'une des faces de l'extrémité de la barre, ainsi que d'une contre-plaque prévue pour être insérée dans le profilé de l'extrémité de la barre puis relié à la plaque supérieure par des moyens traversant cette face de la barre.These goals are achieved thanks to a fastening device comprising a first part forming an integral part of the chain of which it replaces one of the links and composed of an external plate and a vertical internal plate connected by an internal connection and capable of receiving between them an upstream axis and a downstream axis of chain links, each axis possibly being covered by an engagement cylinder, and of a second part extending the internal face of the first part, and composed of a horizontal plate provided for be installed on one of the faces of the end of the bar, as well as a counter plate intended to be inserted in the profile of the end of the bar and then connected to the upper plate by means passing through this face from the bar.
Alors, le démontage d'une barre de pinces usée ou endommagée consiste à dissocier la plaque horizontale de sa contre-plaque, ce qui libère l'extrémité de la barre. Il est donc devenu inutile d'agir sur la première partie de l'attache, donc d'ouvrir le train de chaînes.Then, the dismantling of a worn or damaged clamp bar consists in dissociating the horizontal plate from its counter plate, which releases the end of the bar. So it became useless to act on the first part of the fastener, therefore to open the chain of chains.
De préférence, la plaque horizontale de la seconde partie est reliée au bord supérieur de la plaque verticale interne de la première partie, si nécessaire par un raccord oblique vers le haut, de telle sorte que cette première partie se situe à niveau avec la barre de pinces.Preferably, the horizontal plate of the second part is connected to the upper edge of the internal vertical plate of the first part, if necessary by an oblique connection upwards, so that this first part is level with the bar of pliers.
De préférence, l'attache est symétrique par rapport à un plan vertical passant par la barre de pinces, les plaques interne et externe de la première partie étant reliés par un raccord central. Du fait de cette géométrie, une même attache peut être utilisée aussi bien du côté conducteur que du côté opposé au conducteur.Preferably, the fastener is symmetrical with respect to a vertical plane passing through the clamp bar, the internal and external plates of the first part being connected by a central connector. Because of this geometry, the same fastener can be used both on the driver side and on the side opposite to the driver.
Avantageusement, la face supérieure de l'extrémité de la barre de pinces présente un méplat pour l'assise de la plaque horizontale supérieure de l'attache.Advantageously, the upper face of the end of the clamp bar has a flat for the seat of the upper horizontal plate of the fastener.
Avantageusement, le bord d'extrémité externe de la face supérieure de la barre présente une encoche centrale recevant un ergot de positionnement en correspondance de la contre-plaque. Cette ergot et encoche facilitent le positionnement de la contre-plaque à l'intérieur du profilé de la barre par rapport au méplat supérieur. La liaison de la plaque supérieure et de sa contre-plaque est alors immédiate.Advantageously, the outer end edge of the upper face of the bar has a central notch receiving a positioning lug in correspondence with the counterplate. This lug and notch facilitate the positioning of the counterplate inside the profile of the bar relative to the upper flat. The connection of the upper plate and its counter plate is then immediate.
Lorsque le profilé de la barre présente une surface supérieure plane complétée d'un débord sur la tranche frontal et aval, ce débord est réduit au niveau du méplat et la plaque horizontale supérieure de l'attache est complétée de deux flasques latérales enserrant la barre le long de ce débord réduit. La tenue transversale de la barre par l'attache est ainsi renforcée, et la mise en place de la plaque supérieure sur la face du profilé est d'autant facilitée.When the profile of the bar has a flat upper surface supplemented with an overhang on the front and downstream edge, this overhang is reduced at the level of the flat and the upper horizontal plate of the fastener is completed by two lateral flanges enclosing the bar. along this reduced overhang. The transverse holding of the bar by the fastener is thus reinforced, and the positioning of the upper plate on the face of the profile is made much easier.
Avantageusement, la contre-plaque est de forme sensiblement rectangulaire ajourée, et les moyens de fixations de la plaque supérieure et de sa contre-plaque consiste en deux paires de boulons traversant la plaque supérieure et la barre avant d'être insérés dans des orifices taraudés ménagés dans des sur-épaisseurs faisant office d'écrou et situés au quatre coins de la contre-plaque. La plaque supérieure peut alors également être ajourée en son centre pour en diminuer d'autant son poids.Advantageously, the counter plate is of substantially rectangular perforated shape, and the means for fixing the upper plate and its counter plate consists of two pairs of bolts passing through the upper plate and the bar before being inserted into tapped holes. formed in extra thicknesses acting as a nut and located at the four corners of the counterplate. The upper plate can then also be perforated in its center to reduce its weight accordingly.
L'invention sera mieux comprise à l'étude d'un mode de réalisation pris à titre nullement limitatif et illustré par les figures annexées dans lesquelles :
- La figure 1 est une vue en perspective d'une barre liée de part et d'autre à deux attaches selon l'invention,
- Les figures 2 et 3 sont des vues en perspective des deux pièces composant l'attache selon l'invention,
- Les figures 4 et 5 sont des vues respectivement de côté et du dessus de l'extrémité d'une barre spécialement aménagée pour recevoir une attache selon l'invention, et
- Les figures 6, 7 et 8 sont des vues selon les plans VI, VII et VIII de la figure 1 respectivement de devant, en coupe et de côté d'une attache reliée à la barre.
- FIG. 1 is a perspective view of a bar linked on either side to two fasteners according to the invention,
- FIGS. 2 and 3 are perspective views of the two parts making up the fastener according to the invention,
- FIGS. 4 and 5 are respectively side and top views of the end of a bar specially arranged to receive a fastener according to the invention, and
- Figures 6, 7 and 8 are views along planes VI, VII and VIII of Figure 1 respectively from the front, in section and from the side of a fastener connected to the bar.
La figure 1 illustre une barre 5 supportant une pluralité de pinces parallèles 6. A chacune des extrémités de cette barre est fixée une attache 10, chacune étant susceptible d'être insérée dans une chaîne d'entraînement. Pour ce, cette attache 10 comprend, en amont et en aval, deux logements pour des axes de maillons de chaîne 2.FIG. 1 illustrates a
Plus précisément, cette attache 10 comprend deux pièces mieux visibles sur les figures 2 et 3. La première pièce comprend en sa partie gauche, comme illustré sur la figure 2, deux plaques verticales, une interne 30 et une externe 32 maintenues parallèles et écartées par un raccord central 31. Ces deux plaques verticales sont prévues pour recevoir des axes de maillons de chaîne, ces axes étant tenus dans la plaque externe 32 par des pinces 33 pouvant être serrées chacune par un boulon 37 (figure 6).More specifically, this
Le bord supérieur de la plaque verticale interne 30 est prolongé par une plaque supérieure horizontale 34 sensiblement rectangulaire et présentant, en son centre, un ajour ovale 35. Aux quatre coins de cette plaque 34 sont percés des orifices cylindriques verticaux 38. De plus, les trois quarts des bords latéraux de la plaque 34 sont complétés de flasques verticales 36.The upper edge of the internal
Comme mieux visible sur la figure 3, la contre-plaque 12 se présente sous la forme d'un rectangle 20 horizontal percé d'un ajour central 28 également sensiblement rectangulaire. Sous les quatre coins du rectangle 20 sont ménagées des surépaisseurs percées d'orifices verticaux taraudés faisant office d'écrous 24. Pour une meilleure rigidité de cette contre-plaque 12, les écrous 24 situés sur un même bord latéral sont reliés par une nervure 22 de rigidité. Le bord supérieur du côté du rectangle 20 orienté vers la plaque verticale 30 est complété par un ergot central vertical 26.As best seen in Figure 3, the
Comme illustré sur les figures 4 et 5, une barre de pinces 5 prévue pour être utilisée avec l'attache décrite précédemment, est constituée d'un profilé 40 sensiblement ovale hormis la face supérieure 41 qui est rigoureusement plane. Les bords amont et aval de cette face supérieure 41 se prolongent en deux débords 42 agrandissant la largeur de cette barre pour une meilleure fixation des pinces. Par exemple, le débord aval présente des paires d'orifices pour la fixation du doigt supérieur d'une pince alors que les orifices, en correspondance, pour la fixation du doigt inférieur d'une pince sont réalisés au sein de sièges 48 de prépositionnement situés sur le débord amont.As illustrated in Figures 4 and 5, a
Plus particulièrement, l'extrémité de cette barre 5 présente, en sa face supérieure 41, un méplat 49 constituant un siège de réception de la plaque supérieure horizontale 34 de l'attache 10. Dans ce méplat sont percés quatre orifices verticaux 47 en correspondance avec des orifices 38 de la plaque 34. De plus, les deux débords 42 sont réduits d'environ moitié voire de deux tiers. Ces restrictions 43 présentent un chanfrein 44 en leur bord supérieur. Chacun des angles du bord extrême de la barre 5 est taillé en un biseau 45 évitant ainsi tout angle aigu nuisible. Enfin, une encoche de repérage 46 est taillée au milieu du bord extrême.More particularly, the end of this
Comme mieux illustré sur les figures 6 à 8, la barre de pince 5 est montée à l'attache 10 de la manière suivante.As better illustrated in FIGS. 6 to 8, the
On commence par insérer la contre-plaque 12 à l'intérieur du profilé 40 de la barre 5 jusqu'à installer son ergot 26 dans l'encoche 46 présente au milieu d u bord extrême de la face supérieure de la barre. Ainsi positionnés, les écrous 24 de la contre-plaque 12 tombent exactement en concordance avec les orifices traversants 47 du méplat 49. On amène ensuite la plaque supérieure 34 par-dessus la surface supérieure 41 de la barre 5, le positionnement latéral étant assuré par les flasques 36 de la plaque horizontale venant se caler par-dessus les restrictions 43 des débords 42. Il suffit alors d'avancer ou de reculer la plaque supérieure 34 jusqu'à amener les orifices 38 de la plaque horizontale en correspondance avec les orifices 47 de la barre et les écrous 24 de la contre-plaque. On peut alors engager des boulons 50 dans ces écrous 24. Le serrage de ces quatre boulons prend en sandwich la face supérieure 41 de la barre 5 entre la plaque horizontale 34 et la contre-plaque 12.We start by inserting the
Comme mieux visible sur la figure 8, le raccord entre la plaque supérieure 34 et la plaque verticale 30 étant légèrement oblique, le profilé 40 se retrouve au même niveau que les axes 2 de maillons de chaîne.As best seen in Figure 8, the connection between the
On appréciera le fait que, pour changer une barre usée ou endommagée, il suffit de défaire les quatre boulons 50, ce qui libère immédiatement la barre de pinces 5 sans que l'on ait eu nullement besoin de toucher aux axes 2 de maillons de chaîne.It will be appreciated that, to change a worn or damaged bar, it suffices to undo the four
De nombreuses améliorations peuvent être apportées à ce dispositif d'attache et à sa barre associée dans le cadre des revendications.Many improvements can be made to this attachment device and its associated bar within the scope of the claims.
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1396/94 | 1994-05-04 | ||
CH01396/94A CH690097A5 (en) | 1994-05-04 | 1994-05-04 | A fastening device of a gripper bar to a bar chains within a machine processing plate elements. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0680907A1 true EP0680907A1 (en) | 1995-11-08 |
EP0680907B1 EP0680907B1 (en) | 1997-05-21 |
Family
ID=4209453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95106522A Expired - Lifetime EP0680907B1 (en) | 1994-05-04 | 1995-04-29 | Device for attaching a gripper bar to a chain system in a machine for processing sheet elements |
Country Status (14)
Country | Link |
---|---|
US (1) | US5555969A (en) |
EP (1) | EP0680907B1 (en) |
JP (1) | JP2647809B2 (en) |
KR (1) | KR0157191B1 (en) |
CN (1) | CN1059402C (en) |
AT (1) | ATE153304T1 (en) |
AU (1) | AU687998B2 (en) |
BR (1) | BR9501883A (en) |
CA (1) | CA2148565C (en) |
CH (1) | CH690097A5 (en) |
DE (1) | DE69500309T2 (en) |
DK (1) | DK0680907T3 (en) |
ES (1) | ES2102901T3 (en) |
TW (1) | TW305802B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19807587C1 (en) * | 1998-02-23 | 1999-04-29 | Manfred Vossen | Paper handling machine having grip rods feed-advancing through one level |
ATE319640T1 (en) * | 2003-10-07 | 2006-03-15 | Bobst Sa | WORK STATION OF A CONVERSION MACHINE FOR PLATE-SHAPED ELEMENTS |
TWI261042B (en) * | 2003-10-08 | 2006-09-01 | Bobst Sa | Working station of a machine processing plate elements |
DE102007038116A1 (en) * | 2007-07-30 | 2009-02-05 | Gebr. Schmid Gmbh & Co. | Holding means, apparatus and method for transporting substrates, in particular printed circuit boards |
DE102009049905A1 (en) * | 2009-10-12 | 2011-04-14 | Gebr. Schmid Gmbh & Co. | Holding device for thin flat substrates |
DE102012007606A1 (en) * | 2012-04-16 | 2013-10-17 | Heidelberger Druckmaschinen Aktiengesellschaft | Method for sheet transfer and punching machine with gripper transport system |
CN103466286B (en) * | 2013-09-26 | 2015-10-28 | 上海大学 | Filter spraying solidification manufacturing line automatic transferring equipment follower location unit |
CN109422117B (en) * | 2017-08-30 | 2024-02-23 | 上海旭恒精工机械制造有限公司 | Paper guiding device of die-cutting paper feeding part |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB895640A (en) * | 1957-09-18 | 1962-05-02 | S & S Corrugated Paper Mach | Sheet gripping means for cutting and creasing press |
DE2520231A1 (en) * | 1975-05-07 | 1976-11-18 | Wupa Maschf Gmbh & Co | Chain driven paper sheet gripping bar - contains coil spring to lift tilting portion against overhead member |
DE3502663C1 (en) * | 1985-01-26 | 1986-06-05 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Chain conveyor for the delivery of printing machines |
EP0448943A2 (en) * | 1990-03-24 | 1991-10-02 | Bobst S.A. | Gripper bar for gripping plate-like articles in a machine for producing packages |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2157993C2 (en) * | 1971-11-23 | 1974-01-31 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Device for transporting sheets in a sheet-fed printing machine |
US4635788A (en) * | 1984-07-12 | 1987-01-13 | Cincinnati Milacron Inc. | Conveyor |
JPH0794067B2 (en) * | 1990-10-08 | 1995-10-11 | 権士 近藤 | Method and device for holding and conveying printed circuit board |
US5201516A (en) * | 1992-05-07 | 1993-04-13 | Xerox Corporation | Sheet gripping apparatus |
-
1994
- 1994-05-04 CH CH01396/94A patent/CH690097A5/en not_active IP Right Cessation
-
1995
- 1995-04-11 TW TW084103478A patent/TW305802B/zh not_active IP Right Cessation
- 1995-04-29 EP EP95106522A patent/EP0680907B1/en not_active Expired - Lifetime
- 1995-04-29 DE DE69500309T patent/DE69500309T2/en not_active Expired - Lifetime
- 1995-04-29 DK DK95106522.6T patent/DK0680907T3/en active
- 1995-04-29 AT AT95106522T patent/ATE153304T1/en not_active IP Right Cessation
- 1995-04-29 ES ES95106522T patent/ES2102901T3/en not_active Expired - Lifetime
- 1995-05-01 AU AU17760/95A patent/AU687998B2/en not_active Ceased
- 1995-05-03 US US08/432,639 patent/US5555969A/en not_active Expired - Lifetime
- 1995-05-03 CA CA002148565A patent/CA2148565C/en not_active Expired - Fee Related
- 1995-05-03 KR KR1019950010876A patent/KR0157191B1/en not_active IP Right Cessation
- 1995-05-03 BR BR9501883A patent/BR9501883A/en not_active IP Right Cessation
- 1995-05-04 CN CN95105219A patent/CN1059402C/en not_active Expired - Lifetime
- 1995-05-08 JP JP7109656A patent/JP2647809B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB895640A (en) * | 1957-09-18 | 1962-05-02 | S & S Corrugated Paper Mach | Sheet gripping means for cutting and creasing press |
DE2520231A1 (en) * | 1975-05-07 | 1976-11-18 | Wupa Maschf Gmbh & Co | Chain driven paper sheet gripping bar - contains coil spring to lift tilting portion against overhead member |
DE3502663C1 (en) * | 1985-01-26 | 1986-06-05 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Chain conveyor for the delivery of printing machines |
EP0448943A2 (en) * | 1990-03-24 | 1991-10-02 | Bobst S.A. | Gripper bar for gripping plate-like articles in a machine for producing packages |
Also Published As
Publication number | Publication date |
---|---|
AU1776095A (en) | 1995-11-09 |
CN1120512A (en) | 1996-04-17 |
US5555969A (en) | 1996-09-17 |
CA2148565A1 (en) | 1995-11-05 |
CA2148565C (en) | 1998-05-05 |
CN1059402C (en) | 2000-12-13 |
ES2102901T3 (en) | 1997-08-01 |
DE69500309D1 (en) | 1997-06-26 |
EP0680907B1 (en) | 1997-05-21 |
KR950031836A (en) | 1995-12-20 |
AU687998B2 (en) | 1998-03-05 |
CH690097A5 (en) | 2000-04-28 |
DE69500309T2 (en) | 1997-10-30 |
BR9501883A (en) | 1995-11-28 |
KR0157191B1 (en) | 1999-02-18 |
JP2647809B2 (en) | 1997-08-27 |
ATE153304T1 (en) | 1997-06-15 |
TW305802B (en) | 1997-05-21 |
DK0680907T3 (en) | 1997-11-03 |
JPH07300224A (en) | 1995-11-14 |
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